Added dummy kernel to avoid empty program errors on some OpenCL implementations
Merge branch 'master' of https://github.com/halide/Halide
Avoids loss of low significant bits in conversion from float to string
Turned on FP_CONTRACT for OpenCL programs.
Fixed least significant bits of floats causing errors for C targets.
Fixed precision upper bound
Added spir_common_dev.ll with most math functions implemented
Merge branch 'master' of https://github.com/halide/Halide
Portable way to convert floats to hex strings.
Fixed crash when halide_set_cl_context is not called
Fixed linker errors for multiple halide objects using OpenCL
Added OpenCL libs for OpenCL targets
Removed debug flag
Merge pull request #205 from dsharlet-intel/master

Apps Makefile support for OpenCL + A bunch of small fixes